剑桥词典a small house on two levels that has just two main rooms on the ground floor and two bedrooms on the top floor 兩上兩下的小房屋（指樓下有兩間主要的房間，樓上有兩間臥室） a modest two-up two-down 一幢普通的兩上兩下的房屋 返回 two-up two-down